Re: HP41 Card Reader Message #2 Posted by Vieira, Luiz C. (Brazil) on 19 Feb 2003, 10:07 p.m., in response to message #1 by Howard
Hi;
the best and safest test you can perform with the reader's motor is to connect it to a 1.5V cell. If yoou can remove the card-pulling gear, it's even better. You can briefly connect the 1.5V cell (any battery, but the smaller it is, the easiest will be to touch the motor wires) at any pollarity. The motor should revolve smoothly, noiseless. If it has no mechanical charge (no gear connected to it), you'll have a good idea of its working condition. If you decide to keep the gear in place, you'll be able to test the complete set, and I suggest checking for motor conditions prior to the complete set test. Just be sure the wires are not connected to the PCB when doing this.
Hope this helps.
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